Android Open Source - FirstTipCalc Splitter Fragment

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License

The source code is released under:
Apache License
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Java Source Code

/**
 * Copyright 2014 ReliQ Artz/*w w w  . j  a  v a2  s  .  c  om*/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.reliqartz.firsttipcalc.gui;

import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;

import com.reliqartz.firsttipcalc.R;
import com.reliqartz.firsttipcalc.interfaces.FinalBillChangeListener;
import com.reliqartz.firsttipcalc.interfaces.SplitRatioChangeListener;
import com.reliqartz.firsttipcalc.utils.FontApplicator;
import com.reliqartz.firsttipcalc.utils.FontLibrary;

/**
 * Bill splitter.
 * 
 * @author Patrick Reid
 */
public class SplitterFragment extends AdFragment implements
    FinalBillChangeListener, SplitRatioChangeListener,
    OnCheckedChangeListener, OnItemSelectedListener, FontApplicator.Fonty {
  public static final String TAG = "FirstTip/Splitter";

  private static final String ARG_PARAM1 = "param1";
  private static final String FINAL_BILL = "TOTAL_BILL";

  private double mFinalBill = 0.0;
  private boolean mSplitEven = true;
  private int mSplitFor = 2;
  private int[] mRatios = new int[mSplitFor];
  private String mSplitInfo = new String();
  private String mSplitRatio = new String();
  private String[] mRatioStrings = new String[] {};

  private TextView mBillTextView;
  private Spinner mSplitForSpinner;
  private RadioGroup mSplitRadioGroup;
  private RadioButton mSplitEvenRadioButton, mSplitRatioRadioButton;
  private TextView mSplitInfoTextView, mSplitRatioTextView,
      mSplitEvenResultTextView;
  private LinearLayout mSplitEvenResultLayout;
  private ListView mSplitRatioResultsListView;

  /**
   * Factory method to create a new instance of this fragment using the
   * provided parameters.
   * 
   * @param param1
   *            Parameter 1.
   * @return A new instance of fragment SplitterFragment.
   */
  public static SplitterFragment newInstance(String param1) {
    SplitterFragment fragment = new SplitterFragment();
    Bundle args = new Bundle();

    args.putString(ARG_PARAM1, param1);
    fragment.setArguments(args);
    return fragment;
  }

  /*
   * (non-Javadoc)
   * 
   * @see android.support.v4.app.Fragment#onCreate(android.os.Bundle)
   */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    mSplitInfo = getString(R.string.split_info_text_view);
    if (savedInstanceState != null) {
      mFinalBill = savedInstanceState.getDouble(FINAL_BILL, mFinalBill);
    }
  }

  /*
   * (non-Javadoc)
   * 
   * @see
   * android.support.v4.app.Fragment#onCreateView(android.view.LayoutInflater,
   * android.view.ViewGroup, android.os.Bundle)
   */
  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    return inflater.inflate(R.layout.fragment_splitter, container, false);
  }

  /*
   * (non-Javadoc)
   * 
   * @see android.support.v4.app.Fragment#onStart()
   */
  @Override
  public void onStart() {
    super.onStart();
    init();
  }

  /*
   * (non-Javadoc)
   * 
   * @see
   * android.support.v4.app.Fragment#onSaveInstanceState(android.os.Bundle)
   */
  @Override
  public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putDouble(FINAL_BILL, mFinalBill);
  }

  /*
   * (non-Javadoc)
   * 
   * @see com.reliqartz.firsttipcalc.interfaces.FinalBillChangeListener#
   * onFinalBillChanged(double)
   */
  @Override
  public void onFinalBillChanged(double finalBill) {
    Log.v(TAG, "Final bill recieved as: " + finalBill);
    mFinalBill = finalBill;
    if (mBillTextView != null) {
      mBillTextView.setText(MainActivity.sCurrencySymbol
          + String.format("%.02f", mFinalBill));
      if (mSplitEvenRadioButton.isChecked()) {
        doSplit();
      }
    } else {
      Log.v(TAG, "Bill view not initialized. No update.");
    }
  }

  /*
   * (non-Javadoc)
   * 
   * @see com.reliqartz.firsttipcalc.interfaces.SplitRatioChangeListener#
   * onSplitRatioChanged(double)
   */
  @Override
  public void onSplitRatioChanged(String ratio) {
    Log.i(TAG, "Split ratio recieved: " + ratio);
    splitByRatio(ratio);
  }

  /*
   * (non-Javadoc)
   * 
   * @see
   * android.widget.RadioGroup.OnCheckedChangeListener#onCheckedChanged(android
   * .widget.RadioGroup, int)
   */
  @Override
  public void onCheckedChanged(RadioGroup group, int checkedId) {
    if (checkedId == mSplitRatioRadioButton.getId()) {
      mSplitEven = false;
    } else {
      mSplitEven = true;
    }
    Log.v(TAG, "Split changed: " + checkedId + " :checked. Split even: "
        + mSplitEven);
    doSplit();
  }

  /*
   * (non-Javadoc)
   * 
   * @see
   * android.widget.AdapterView.OnItemSelectedListener#onItemSelected(android
   * .widget.AdapterView, android.view.View, int, long)
   */
  @Override
  public void onItemSelected(AdapterView<?> parent, View view, int position,
      long id) {
    mSplitFor = Integer.parseInt(mSplitForSpinner.getSelectedItem()
        .toString().replaceAll("[\\D]", ""));
    if (mSplitEvenRadioButton.isChecked()
        || mSplitRatioRadioButton.isChecked()) {
      doSplit();
    }
  }

  /*
   * (non-Javadoc)
   * 
   * @see
   * android.widget.AdapterView.OnItemSelectedListener#onNothingSelected(android
   * .widget.AdapterView)
   */
  @Override
  public void onNothingSelected(AdapterView<?> parent) {
    // Do nothing...
  }

  /*
   * (non-Javadoc)
   * 
   * @see com.reliqartz.firsttipcalc.utils.FontApplicator.Fonty#applyFonts()
   */
  @Override
  public void applyFonts() {
    // apply overall font
    ((MainActivity) getActivity()).getFontApplicator().applyFont(getView());
    // apply specific fonts
    final FontApplicator fontApp = new FontApplicator(getActivity(),
        FontLibrary.ROBOTO);
    fontApp.applyFont(mBillTextView);
    fontApp.applyFont(mSplitRatioTextView);
    fontApp.applyFont(mSplitForSpinner);
    fontApp.applyFont(mSplitEvenResultTextView);
  }

  /**
   * Initialize views and set listeners.
   */
  private void init() {
    mBillTextView = (TextView) getView().findViewById(R.id.billTextView);
    mSplitForSpinner = (Spinner) getView().findViewById(
        R.id.splitForSpinner);
    mSplitRadioGroup = (RadioGroup) getView().findViewById(
        R.id.splitForRadioGroup);
    mSplitEvenRadioButton = (RadioButton) getView().findViewById(
        R.id.splitEvenRadioButton);
    mSplitRatioRadioButton = (RadioButton) getView().findViewById(
        R.id.splitRatioRadioButton);
    mSplitInfoTextView = (TextView) getView().findViewById(
        R.id.splitInfoTextView);
    mSplitRatioTextView = (TextView) getView().findViewById(
        R.id.splitRatioTextView);
    mSplitEvenResultTextView = (TextView) getView().findViewById(
        R.id.evenSplitAmountTextView);
    mSplitEvenResultLayout = (LinearLayout) getView().findViewById(
        R.id.splitEvenResultLayout);
    mSplitRatioResultsListView = (ListView) getView().findViewById(
        R.id.splitRatioResultsListView);
    mBillTextView.setText(MainActivity.sCurrencySymbol
        + String.format("%.02f", mFinalBill));
    mSplitRadioGroup.clearCheck();
    mSplitRadioGroup.setOnCheckedChangeListener(this);
    mSplitForSpinner.setOnItemSelectedListener(this);
    
    // setup lower ad
    initAd(R.id.splitterLayout);

    updateSplitInfoRow();
    applyFonts();
  }

  /**
   * Perform bill split.
   */
  private void doSplit() {
    Log.v(TAG, "Attempting to do split...");
    if (mSplitEven) {
      splitEven();
    } else {
      if (mFinalBill == 0.0) {
        mSplitRadioGroup.clearCheck();
        mSplitEvenResultLayout.setVisibility(View.GONE);
        mSplitRatioResultsListView.setVisibility(View.GONE);
        Toast.makeText(getActivity(),
            getString(R.string.ratio_no_bill_warning),
            Toast.LENGTH_SHORT).show();
        mSplitInfo = getString(R.string.split_info_text_view);
        mSplitRatio = "";
      } else {
        RatioDialog.newInstance(mFinalBill, mSplitFor).show(
            getFragmentManager(), RatioDialog.TAG);
      }
    }
    updateSplitInfoRow();
  }

  /**
   * Split evenly.
   */
  private void splitEven() {
    Log.v(TAG, "Splitting even.:.");
    mSplitEvenResultLayout.setVisibility(View.VISIBLE);
    mSplitRatioResultsListView.setVisibility(View.GONE);
    mSplitInfo = getString(R.string.split_on_text_view);
    mSplitRatio = getString(R.string.split_ratio_text_view);
    mSplitEvenResultTextView.setText(MainActivity.sCurrencySymbol
        + String.format("%.02f", mFinalBill / mSplitFor));
  }

  /**
   * Split by ratio.
   */
  private void splitByRatio(String ratio) {
    Log.v(TAG, "Splitting by ratio.:..");
    mSplitRatioResultsListView.setVisibility(View.VISIBLE);
    mSplitEvenResultLayout.setVisibility(View.GONE);
    mSplitInfo = getString(R.string.split_on_text_view);
    mSplitRatio = ratio;
    mRatioStrings = ratio.split(":");
    mRatios = new int[mRatioStrings.length];
    for (int i = 0; i < mRatioStrings.length; i++) {
      mRatios[i] = Integer.parseInt(mRatioStrings[i]);
    }
    mSplitRatioResultsListView.setAdapter(new RatioShareAdapter(
        getActivity(), mRatios, mFinalBill));
    updateSplitInfoRow();
  }

  /**
   * Change split information texts.
   */
  private void updateSplitInfoRow() {
    mSplitInfoTextView.setText(mSplitInfo);
    mSplitRatioTextView.setText(mSplitRatio);
  }
}
Java Source Code List
